CN109339732A - A kind of American football shape packing element sand control packer - Google Patents
A kind of American football shape packing element sand control packer Download PDFInfo
- Publication number
- CN109339732A CN109339732A CN201811073880.XA CN201811073880A CN109339732A CN 109339732 A CN109339732 A CN 109339732A CN 201811073880 A CN201811073880 A CN 201811073880A CN 109339732 A CN109339732 A CN 109339732A
- Authority
- CN
- China
- Prior art keywords
- packing element
- american football
- bowl
- shape packing
- mandrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012856 packing Methods 0.000 title claims abstract description 86
- 239000004576 sand Substances 0.000 title claims abstract description 19
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 239000003292 glue Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 239000010985 leather Substances 0.000 description 5
- 238000000605 extraction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
Abstract
The invention discloses a kind of American football shape packing element sand control packers, including mandrel, position is provided with annular groove among the mandrel, boss is symmetrically arranged between the annular groove and mandrel both ends, American football shape packing element mechanism is arranged on the annular groove, American football shape packing element mechanism both ends are symmetrically arranged with spring mechanism.Pass through the olive-shaped American football shape packing element mechanism of setting, realizing American football shape packing element mechanism can shuttle between big small-bore, and umbellate form skeleton is inlaid in the bowl-shape packing element, make bowl-shape glue that there is elasticity well, in the middle part of the American football shape of major diameter when entering small size internal diameter, steel skeleton, which generates after flexible deformation reduces, after the rim of a bowl position is compressed can smoothly enter into entire packing element can in small size internal diameter, and when entire packing element is when entering in major diameter internal diameter, the skeleton for generating flexible deformation restores the size to before deforming again, so that packing element can be also tightly attached on the internal surface of sleeve pipe of major diameter.
Description
Technical field
The invention belongs to oil recovery technique fields, and in particular to a kind of American football shape packing element sand control packer.
Background technique
With the extension of oil mining time, formation pressure is lower and lower, and therefore, it is necessary to tripping in oil-extraction electric pumps to underground handle
Oil is pumped to ground, and oil-extraction electric pump generally will be down toward the position of underground oil reservoir.
During oil reservoir is fuel-displaced, generally the sand on stratum can also be brought out.Sand is accumulated upwards in order to prevent, and one
As a sand control packer will be connected on flow string, sand control packer generallys use leather cup structural shape.Conventional adopts
Tubing string composition are as follows: (from top to bottom) oil pipe+Sand-proof leather cup packer+oil pipe+oil-extraction electric pump+sand control screen.
For Tarim Oilfield, the depth of oil-extraction electric pump tripping in is usually in the position apart from well head 2-3 km, this position
Typically protective casing present position, therefore, the specification bigger than well head four-way of casing inner diameter herein.For example, when oil
When layer casing uses 7 " casing, the internal diameter of well head four-way is also 7 ", and the internal diameter of protective casing is 9 5/8 ", therefore, Wo Menyao
After the packer done just must first go down from 7 " casing inner diameters of well head four-way, when entering the 9 5/8 of protective casing " in internal diameter
When can be flared to automatically and be adjacent to internal surface of sleeve pipe, can be only achieved the effect of sand control in this way.
Currently, there are no one kind can first pass through the packer worked normally inside big wellbore after slim-hole both at home and abroad,
Because existing packer type is also unable to satisfy such a job requirements.
1, the current maximum of the packing element of conventional compact formula packer can only achieve 1.15 compression ratio, and the pressure required by us
Ratio contract all 1.20 or more, maximum has been more than 1.30, and compression ratio big so at all can not using conventional compact formula packing element structure
It meets the requirements；
Although 2, its requirement that can satisfy compression ratio of conventional expanding packing element, expanding packing element is needed from packing element
The hydraulic effect that can be only achieved Expansion sealing is beaten in inner cavity, and is that can not provide such a can make packing element in normal flow string
The internal pressure of expansion, therefore, conventional inflatable packer are also unable to satisfy our this job requirements；
3, what self-packing packer used is also bowl structure packing element pattern, still, due to the design of its structure, just
Reason condition lower rubber cylinder maximum gauge can only 1-6mm bigger than pit shaft internal diameter or so if decrement is excessive first will lead to packing element damage
It is bad, second packing element can be made to wear quickly.Therefore, conventional self-packing packer is also unable to satisfy our this job requirements.
Summary of the invention
The present invention solves the deficiencies in the prior art, provides a kind of American football shape packing element sand control packer, passes through setting
American football shape packing element mechanism, realize packer and first passing through small-bore, then in large aperture realize sand control function.
The technical scheme adopted by the invention is that: a kind of American football shape packing element sand control packer, including mandrel, the mandrel
Intermediate position offers annular groove, and the annular groove and mandrel both ends joint are symmetrically arranged with boss, and the annular is recessed
American football shape packing element mechanism is arranged on slot, American football shape packing element mechanism both ends are symmetrically arranged with spring mechanism, the bullet
Spring mechanism is sheathed on mandrel both ends, and American football shape packing element mechanism includes a pair of bowl-shape packing element being buckled togather, and institute
It states and one is fixedly connected on by connecting plate between bowl-shape packing element the rim of a bowl, described bowl-shape packing element bottom of bowl one end is provided with pedestal, institute
Base sheath is stated on the mandrel, and it is between spring mechanism and boss.
Preferably, the bowl-shape packing element includes packing element, and elastic skeleton is inlaid among the packing element, and the elastic skeleton is
Umbellate form skeleton structure.
The bowl-shape packing element bowl mouth end is provided with connecting plate, is bolted between the connecting plate, and the connection
Plate forms a concave groove between described bowl-shape packing element the rim of a bowl.
Preferably, the spring mechanism includes spring, and the spring pocket is set on mandrel, the spring one end and bowl-shape glue
Cylinder bottom of bowl is provided with retaining ring, and the other end offsets with the nut being sheathed on mandrel.
Preferably, the pedestal is pyramidal structure, and it is inserted into the bellmouth that retaining ring opens up.
Compared to the prior art, the invention has the benefit that the present invention passes through the American football shape packing element mechanism of setting,
Realizing American football shape packing element mechanism can shuttle between big small-bore, and be inlaid with umbellate form bone in the bowl-shape packing element
Frame makes bowl-shape packing element have elasticity well, in the middle part of the American football shape of major diameter when entering small size internal diameter, the rim of a bowl position
Steel skeleton, which generates after flexible deformation reduces, after being compressed can smoothly enter into entire packing element can in small size internal diameter, and work as
For entire packing element when entering in major diameter internal diameter, the skeleton for generating flexible deformation restores the size to before deforming again, in addition, bowl-shape
The spring force at packing element both ends also can promote bowl-shape packing element that packing element can be also tightly attached on the internal surface of sleeve pipe of major diameter.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is American football shape packing element cross-sectional view of the present invention.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of American football shape packing element sand control packer, refering to fig. 1, including mandrel 1, the intermediate position of the mandrel 1 offer
Annular groove 11, the annular groove 11 are symmetrically arranged with boss 12 with 1 both ends joint of mandrel, cover on the annular groove 11
Equipped with American football shape packing element mechanism 3,3 both ends of American football shape packing element mechanism are symmetrically arranged with spring mechanism 2, the coiling machine
Structure 2 is sheathed on 1 both ends of mandrel, and American football shape packing element mechanism 3 is American football shape structure comprising a pair is buckled togather
Bowl-shape packing element 32, one, bowl-shape 32 bottom of bowl one end of packing element setting are fixedly connected between described bowl-shape 32 the rim of a bowl of packing element
There is pedestal 31, the pedestal 31 is sheathed on mandrel 1, and it is between spring mechanism 2 and boss 12.
In order to increase the elastic force of bowl-shape packing element 32, referring to Fig.2, the bowl-shape packing element 32 includes packing element 321, the packing element
Skeleton 322 is inlaid among 321, the skeleton 322 is umbellate form skeleton structure.
In order to make it have a buffering in deformation process, referring to Fig.2,32 bowl mouth end of bowl-shape packing element is provided with connection
Plate 323 is bolted between the connecting plate 323, and the connecting plate 323 is between described bowl-shape 32 the rim of a bowl of packing element
Form a concave groove.
In order to provide deformation space and screen resilience to packing element, refering to fig. 1, the spring mechanism 2 includes spring 22, the bullet
Spring 22 is sheathed on mandrel 1, and described 22 one end of spring is provided with retaining ring 23, the other end and the nut 21 being sheathed on mandrel 1
It offsets.
In order to be fitted close pedestal 31 and retaining ring 23, refering to fig. 1, the pedestal 31 is pyramidal structure, and it is inserted into gear
In the bellmouth that circle 23 opens up.
The effect of spring mechanism 2:
First is when American football shape packing element mechanism 3 enters in the lesser casing of diameter, due to 32 outer diameter quilt of cup packer
After compression becomes smaller, cup packer 32 is axial to be elongated, and spring 22 can then be returned leather cup by compression and back and generate a deformation space, protect
Card cup packer 32 is unlikely to be damaged.
Second is when American football shape packing element mechanism 3 enters in the casing being relatively large in diameter, and the elastic force of spring 22 will push again
Cup packer 32 is drawn close to mandrel center so that 32 axial distance of cup packer shortens and diameter swells, can well with it is larger
The internal surface of sleeve pipe of diameter is adjacent to.
The principle that two leather cups are capable of swell simultaneously is:
When American football shape packing element mechanism 3 enters in the casing being relatively large in diameter, firstly, the elastic skeleton inside cup packer
Its shape before being compressed can be restored to and packing element diameter is made to become larger, second, the elastic force of spring mechanism 2 will push two leather cups again
Packing element 32 is drawn close to mandrel center so that American football shape packing element mechanism 3 shortens to distance and diameter swells, can well with compared with
The internal surface of sleeve pipe of major diameter is adjacent to.
The present invention is buckled togather using with a pair of of cup packer 32, it is made to become an American football shape packing element mechanism
3, using the 3 lesser feature of both ends diameter of American football shape packing element mechanism, can be very good into the inner hole of small diameter.Lead to again
Cross 32 both ends of cup packer setting spring mechanism 2 so that American football shape packing element mechanism 3 enter larger diameter inner hole when, bullet
The elastic force of spring mechanism 2 pushes cup packer 32 to drawing close together, so that the rim of a bowl size restoration is to reset condition, so that glue
Cylinder is adjacent to internal surface of sleeve pipe.
Above-described embodiment, only presently preferred embodiments of the present invention, the practical range being not intended to limit the invention, thus it is all with
The equivalent variations that content described in the claims in the present invention is done should all be included within scope of the invention as claimed.
Claims (5)
1. a kind of American football shape packing element sand control packer, including mandrel (1), which is characterized in that offered in the middle part of the mandrel (1)
Annular groove (11), the annular groove (11) and mandrel (1) both ends joint are symmetrically arranged with boss (12), and the annular is recessed
American football shape packing element mechanism (3) is arranged on slot (11), American football shape packing element mechanism (3) both ends are symmetrically arranged with coiling machine
Structure (2), the spring mechanism (2) are sheathed on mandrel (1) both ends, and American football shape packing element mechanism (3) includes a pair of of make-up
Bowl-shape packing element (32) together, and one, the bowl-shape packing element are fixedly connected between the bowl-shape packing element (32) the rim of a bowl
(32) bottom of bowl one end is provided with pedestal (31), and the pedestal (31) is sheathed on mandrel (1), and its be located at spring mechanism (2) with
Between boss (12).
2. a kind of American football shape packing element sand control packer according to claim 1, which is characterized in that the bowl-shape packing element
(32) include packing element (321), be inlaid with skeleton (322) among the packing element (321), the skeleton (322) is umbellate form skeleton knot
Structure.
3. a kind of American football shape packing element sand control packer according to claim 2, which is characterized in that the bowl-shape packing element
(32) bowl mouth end is provided with connection frame (323), is bolted between the connection frame (323), and the connection frame (323)
A concave groove is formed between described bowl-shape packing element (32) the rim of a bowl.
4. a kind of American football shape packing element sand control packer according to claim 3, which is characterized in that the spring mechanism
It (2) include spring (22), the spring (22) is sheathed on mandrel (1), and described spring (22) one end is provided with retaining ring (23),
The other end offsets with the nut (21) being sheathed on mandrel (1).
5. a kind of American football shape packing element sand control packer according to claim 4, which is characterized in that the pedestal (31) is
Pyramidal structure, and it is inserted into the bellmouth that retaining ring (23) opens up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811073880.XA CN109339732B (en) | 2018-09-14 | 2018-09-14 | Rugby-shaped rubber sleeve sand prevention packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811073880.XA CN109339732B (en) | 2018-09-14 | 2018-09-14 | Rugby-shaped rubber sleeve sand prevention packer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109339732A true CN109339732A (en) | 2019-02-15 |
| CN109339732B CN109339732B (en) | 2020-11-27 |
Family
ID=65305637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811073880.XA Active CN109339732B (en) | 2018-09-14 | 2018-09-14 | Rugby-shaped rubber sleeve sand prevention packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109339732B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107247A (en) * | 2019-05-30 | 2019-08-09 | 广州加士特密封技术有限公司 | A kind of slip seals structure |
| CN116771302A (en) * | 2023-08-17 | 2023-09-19 | 太原科技大学 | Umbrella-shaped expansion type bridge plug with plugging structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2210950Y (en) * | 1994-11-11 | 1995-10-25 | 宝鸡石油机械厂 | Butterfly-type safety valve |
| US20050072579A1 (en) * | 2003-10-03 | 2005-04-07 | Philippe Gambier | Well packer having an energized sealing element and associated method |
| CN2718218Y (en) * | 2004-02-12 | 2005-08-17 | 辽河石油勘探局 | Composite casing oil extractor tool |
| US20070227746A1 (en) * | 2006-03-29 | 2007-10-04 | Zheng Rong Xu | Packer cup systems for use inside a wellbore |
| CN201738866U (en) * | 2010-07-19 | 2011-02-09 | 于成龙 | Anti-pollution well-cleaning packer |
| CN202903604U (en) * | 2012-11-14 | 2013-04-24 | 中国石油天然气股份有限公司 | Rubber sleeve for bridge plugs and packer and rubber sleeve assembly test device |
| CN104832113A (en) * | 2015-04-29 | 2015-08-12 | 西安威盛电子科技股份有限公司 | Self-adaptive down-hole hydraulic centering device and centering method thereof |
-
2018
- 2018-09-14 CN CN201811073880.XA patent/CN109339732B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2210950Y (en) * | 1994-11-11 | 1995-10-25 | 宝鸡石油机械厂 | Butterfly-type safety valve |
| US20050072579A1 (en) * | 2003-10-03 | 2005-04-07 | Philippe Gambier | Well packer having an energized sealing element and associated method |
| CN2718218Y (en) * | 2004-02-12 | 2005-08-17 | 辽河石油勘探局 | Composite casing oil extractor tool |
| US20070227746A1 (en) * | 2006-03-29 | 2007-10-04 | Zheng Rong Xu | Packer cup systems for use inside a wellbore |
| CN201738866U (en) * | 2010-07-19 | 2011-02-09 | 于成龙 | Anti-pollution well-cleaning packer |
| CN202903604U (en) * | 2012-11-14 | 2013-04-24 | 中国石油天然气股份有限公司 | Rubber sleeve for bridge plugs and packer and rubber sleeve assembly test device |
| CN104832113A (en) * | 2015-04-29 | 2015-08-12 | 西安威盛电子科技股份有限公司 | Self-adaptive down-hole hydraulic centering device and centering method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107247A (en) * | 2019-05-30 | 2019-08-09 | 广州加士特密封技术有限公司 | A kind of slip seals structure |
| CN116771302A (en) * | 2023-08-17 | 2023-09-19 | 太原科技大学 | Umbrella-shaped expansion type bridge plug with plugging structure |
| CN116771302B (en) * | 2023-08-17 | 2023-10-27 | 太原科技大学 | Umbrella-shaped expansion type bridge plug with plugging structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109339732B (en) | 2020-11-27 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A rugby rubber cylinder sand control packer Effective date of registration: 20210604 Granted publication date: 20201127 Pledgee: Shaanxi Baoji Jintai Rural Commercial Bank Co.,Ltd. Pledgor: BAOJI RUILIN PETROLEUM ELECTROMECHANICAL EQUIPMENT Co.,Ltd. Registration number: Y2021980004399 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220527 Granted publication date: 20201127 Pledgee: Shaanxi Baoji Jintai Rural Commercial Bank Co.,Ltd. Pledgor: BAOJI RUILIN PETROLEUM ELECTROMECHANICAL EQUIPMENT CO.,LTD. Registration number: Y2021980004399 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A football shaped rubber cylinder sand control packer Effective date of registration: 20220531 Granted publication date: 20201127 Pledgee: Shaanxi Baoji Jintai Rural Commercial Bank Co.,Ltd. Pledgor: BAOJI RUILIN PETROLEUM ELECTROMECHANICAL EQUIPMENT CO.,LTD. Registration number: Y2022980006766 |
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Date of cancellation: 20230613 Granted publication date: 20201127 Pledgee: Shaanxi Baoji Jintai Rural Commercial Bank Co.,Ltd. Pledgor: BAOJI RUILIN PETROLEUM ELECTROMECHANICAL EQUIPMENT CO.,LTD. Registration number: Y2022980006766 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A rugby shaped rubber tube sand control packer Effective date of registration: 20230728 Granted publication date: 20201127 Pledgee: Shaanxi Baoji Jintai Rural Commercial Bank Co.,Ltd. Pledgor: BAOJI RUILIN PETROLEUM ELECTROMECHANICAL EQUIPMENT CO.,LTD. Registration number: Y2023980050280 |
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